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L1022027 Rev BA Jan 2013

Series 42

Electrical

Displacement

Control (EDC)

Product ElectricalInstallation

Technical

Information

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Revisions

Version Revisions

Date Page Changed Rev.

25 Jan 2013 6 Currents BA14 May 2010 Initial release AA

2013 Sauer-Danfoss. All rights reserved.

Sauer-Danfoss accepts no responsibility for possible errors in catalogs, brochures and other printed material.

Sauer -Danfoss reserves the right to alter its products without prior notice. This also applies to products already

ordered provided that such alterations can be made without affecting agreed specifications. All trademarks

in this material are properties of their respective owners. Sauer-Danfoss, the Sauer-Danfoss logotype, the

Sauer-Danfoss S-icon, PLUS+1, What really matters is inside and Know-How in Motion are trademarks of the

Sauer-Danfoss Group.

S42 Electrical Displacement Control (EDC)

Product Electrical Installation Technical Information

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References

Contents

Refer to the S42 Axial Piston Pumps Technical Information11022637for complete

product electrical and mechanical specifications.

Refer to PLUS+1 Compliant S42 EDC Control Function Block User ManualL1020718for

compliant function block set-up information.

Technical literature is available at: www.sauer-danfoss.com

Product Overview Product Image .................................................................................................................................................4

Nomenclature ..................................................................................................................................................4

Description/Theory of Operation .............................................................................................................5Hydraulic Schematics....................................................................................................................................6

Electrical Specifications................................................................................................................................6

Electrical Installation Pinout .................................................................................................................................................................7

Pin Compatibility ............................................................................................................................................7

Input/ Output Matrix..................................................................................................................................... 8

Mating Connector ..........................................................................................................................................8



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L1022027 Rev BA Jan 2013

Product Overview

Nomenclature Series 42 Nomenclature

S42

Rotation Y C D E F Q R G S T U H J K L M N P

Only certain control options for the S42 pump utilize the Electrical Displacement Control

(EDC). Please refer to the pumps nomenclature to determine if the pump is equippedwith the proper option. The nomenclature can be found on the pumps nametag. For

nomenclature details, refer to S42 Axial Piston Pumps Technical Information,11022637.

D Module - Control Options

Option Description

E1A3 Electrical Displacement Control, 14-85mA, Packard Weather-Pack Connector, Low Gain Spool

E1A4 Electrical Displacement Control, 14-85mA, MS Connector, Low Gain Spool

E1A5 Electrical Displacement Control, 14-85mA, Packard Weather-Pack Connector, High Gain Spool

E1A6 Electrical Displacement Control, 14-85mA, MS Connector, High Gain SpoolE1A7 Electrical Displacement Control, 14-85mA, Deutsch Connector, High Gain Spool

Product Image S42 28cc EDC

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L1022027 Rev BA Jan 2013

Product Overview

Description/

Theory of Operation

The Electrical Displacement Control (EDC) uses an electrohydraulic Pressure Control

Pilot (PCP) stage to provide a differential pilot pressure. The PCP stage converts an

electrical input signal to a hydraulic input signal to operate a spring centered sensingpiston. The sensing piston produces a mechanical input to the servo control valve which

ports hydraulic pressure to either side of the servo piston. The servo piston operates the

swashplate varying the pumps displacement and flow direction.

The position of the swashplate is proportional to the electrical input signal. The control

has mechanical feedback that regulates the servo valve in relation to swashplate

position to maintain displacement at the commanded level regardless of changes in

system pressure. Any swashplate position error is fed back to the servo valve for instant

correction.

The servo control valve has variable geometry porting to regulate swashplate response

relative to input command. The control performs small displacement change commands

with maximum controllability throughout the entire stroking range of the pump. It

completes large displacement change commands with rapid swashplate response.

Optional servo supply and drain orifices are available for special response needs.

EDC Proportional Actuation

WWarning

Unintended vehicle or machine movement hazard.

The loss of hydrostatic drive line power, in any mode of operation (forward, neutral, or

reverse) may cause the system to lose hydrostatic braking capacity. You must provide a

braking system, redundant to the hydrostatic transmission, sufficient to stop and hold

the vehicle or machine in the event of hydrostatic drive power loss.

0

100 %

100 %

Displacement

Current mA

P108 293

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Product Overview

Hydraulic Schematics EDC Hydraulic Schematic

Electrical Specifications Pump Displacement versus Control Current

S42 EDC Electrical SpecificationsThreshold current 18 mA

End current 105 mA

Maximum current 350 mA at 6 Vdc

Rated power 18 W

AB Coil Resistance at 24C (75F) 20

CD Coil Resistance at 24C (75F) 16

Recommended PWM frequency (see note below) 200 Hz

Verify the PWM frequency is set correctly in the PLUS+1 controller. The default is set at

4000 Hz which will significantly reduce EDC performance.

0

-b -a

ba

100 %

100 %

Displacement

Current mA

P003 479E

M5

M4

X1 X2

P100410E

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Electrical Installation

Pinout Pinout

Pin Description

A PWM signalB Ground

C Ground

D PWM signal

Pin Location

Alternative Pinout

Pin Description

A PWM signal

B Ground

C Ground

D PWM signal

Deutsch 4-way Connector Pinout

Pin Description

1 PWM signal

2 Ground

3 Ground

4 PWM signal

Pin Compatibility PLUS+1 Module Pin Type/ S42 EDC Pin Compatibility

PLUS+1 module pin type Acceptable use: Device pin number

PWMOUT/DOUT/PVG Power supply 1, 4, A, D

PWMOUT/DOUT/PVGOUT* 1, 4, A, D

Power ground - 2, 3, B, C

WWarning

Unintended vehicle or machine movement hazard. Verify the wiring harness to ensure

the correct PLUS+1 pin is properly connected to each control pin.

B

C

D

A

P102 028E

A

B

D

C

P102 027E

P108 298

2

1

3

4

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Electrical Installation

Input/ Output Matrix Pump Output Flow Direction versus Control Signal

Shaft rotation CW CCW

Positive current to terminal A, C, 1, 3 B, D, 2, 4 A, C, 1, 3 B, D, 2, 4Port A flow Out In In Out

Port B flow In Out Out In

High pressure servo gauge port M4 M5 M4 M5

High pressure EDC pilot gauge X2 X1 X2 X1

Mating Connector MS Connector Parts List

Description Quantity Ordering number

MS connector 1 SG3108E-14S-2S-SRSauer-Danfoss mating connector kit 1 K08106

Packard Weather-Pack Connector Parts List


4 way black Weather-Pack tower sealed female

connector assembly 1 12015797

Female terminals (18 to 20 AWG)* 4 15408312

Cable seals (2.03 to 2.85 mm cable diameter)* 4 12015323

Sauer-Danfoss mating connector kit 1 K03384

Deutsch Connector Parts List


4 way gray connector assembly 1 Deutsch: DT06-4S-E003

Female nickel-plated terminals (16 to 18 AWG) 4 Deutsch: 0462-201-16141

Sauer-Danfoss mating connector kit 1 K23511

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Notes



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Notes



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Notes



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Local address:

Sauer-Danfoss GmbH & Co. OHG

Postfach 2460, D-24531 Neumnster

Krokamp 35, D-24539 Neumnster, Germany

Phone: +49 4321 871 0

Fax: +49 4321 871 122

Sauer-Danfoss ApS

DK-6430 Nordborg, Denmark

Phone: +45 7488 4444

Fax: +45 7488 4400

Sauer-Danfoss is a global manufacturer and supplier of high-

quality hydraulic and electronic components. We specialize in

providing state-of-the-art technology and solutions that excel in

the harsh operating conditions of the mobile off-highway market.Building on our extensive applications expertise, we work closely

with our customers to ensure exceptional performance for a broad

range of off-highway vehicles.

We can help speed up system development, reduce costs and bring

your vehicles to market faster. Sauer-Danfoss Your Strongest

Partner in Mobile Hydraulics.

Go to www.sauer-danfoss.com for further product information.

Wherever off-highway vehicles are at work, so is Sauer-Danfoss.

We offer expert worldwide support for our customers, ensuring

the best possible solutions for outstanding performance. And with

an extensive network of Global Service Partners, we also provide

comprehensive global service for all of our components.

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Members of the Sauer-Danfoss Group

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www.comatrol.com

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www.turollaocg.com

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www.hydro-gear.com

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www.sauer-danfoss-daikin.com

Sauer-Danfoss (US) Company

2800 East 13th Street

Ames, IA 50010, USA

Phone: +1 515 239 6000

Fax: +1 515 239 6618

Sauer-Danfoss-Daikin LTD.

Shin-Osaka TERASAKI 3rd Bldg. 6F

1-5-28 Nishimiyahara, Yodogawa-ku

Osaka 532-0004, Japan

Phone: +81 6 6395 6066

Fax: +81 6 6395 8585

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